159138841 has 4 divisors (see below), whose sum is σ = 164272384. Its totient is φ = 154005300.

The previous prime is 159138827. The next prime is 159138877. The reversal of 159138841 is 148831951.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 148831951 = 9109 ⋅16339.

It is a cyclic number.

It is not a de Polignac number, because 159138841 - 2⁷ = 159138713 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 159138794 and 159138803.

It is not an unprimeable number, because it can be changed into a prime (159130841) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2566725 + ... + 2566786.

It is an arithmetic number, because the mean of its divisors is an integer number (41068096).

Almost surely, 2^159138841 is an apocalyptic number.

It is an amenable number.

159138841 is a deficient number, since it is larger than the sum of its proper divisors (5133543).

159138841 is an equidigital number, since it uses as much as digits as its factorization.

159138841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5133542.

The product of its digits is 34560, while the sum is 40.

The square root of 159138841 is about 12615.0244153549. The cubic root of 159138841 is about 541.9077935310.

The spelling of 159138841 in words is "one hundred fifty-nine million, one hundred thirty-eight thousand, eight hundred forty-one".